2. What is food sustainability
Sustainable food production' means shared
responsibility for the production, supply and
consumption of safe and nutritious food within a
viable industry that simultaneously protects and
enhances our natural environment and quality of
life now and into the future.
3. Why is food sustainability important ?
The World Food Programme reports that more than 1 in 9 people
worldwide — 821 million people — go hungry every day.
Hunger and malnutrition are such a widespread problem that the UN has
emphasized that “a profound change of the global food and agriculture
system is needed” to tackle it. This change should include striving for the
sustainable production of food.
4. SUSTAINABILITY PROBLEM FOR THE FOOD
SECTOR
1. Traceability
2. Packaging
3. Greenwashing
4. Devaluing food and drink
5. Food waste
6. Supply chain issues
5. 1.TRACEABILITY
• Traceability is the ability to trace all processes
from procurement of raw materials to
production, consumption and disposal to clarify
"when and where the product was produced by
whom.“
• Traceability enables corrective actions (such as
a product recall) to be implemented quickly and
effectively when something goes wrong. When
a potential food safety problem is identified,
whether by a food business or a government
agency, an effective traceability system can help
isolate and prevent contaminated products
from reaching consumers.
6. 2. PACKAGING
Lack of packaging strength is a major brand weakness.
No preservatives equals severely limited product shelf life
PACKAGING IS ONE OF THE POST PROCESSING OPERATIONS
Packaging of food products is necessary throughout the handling, transportation, storage,
retail display and consumer contact to protect the
Nutritional quality
Color properties
Sensory attributes
Lipid stability
Safety and microbial quality
7. 3. GREENWASHING
Greenwashing has become a big issue in the food and drink world, with claims around
everything from the true recyclability of packaging to ingredient sourcing now under the
microscope. “The problem with transparency claims is that companies do not have a
good system to collect and verify supply chain and material integrity information,” warns
Trus Trace’s shameek. His business aims to make it easier for companies to boost their
transparency. “Sustainability claims related to each component of the supply chain can
be verified, helping to both continue good practices and identify specific areas for
improvement.”
New guidance from the Competition and Markets Authority is cracking down on
greenwashing, so now is the time for businesses to ensure that they meet these high
standards
8. 4.DEVALUING FOOD AND DRINK
As fine food retailers are well aware, the price tag of most supermarket
food products has for a long time been out of sync with the realities of the
costs involved with making quality food. “The food sector is facing issues
associated with cheap foods.
Intensive modern agriculture has led to biodiversity loss and degradation
of soil health, which in turn leads companies to use more chemical
fertilisers and pesticides on crops. “This negative feedback loop has
become a big sustainability issue of the food sector. It offers little security
to the primary producers, retailers and consumers alike. For these reasons,
we call for true cost farming to increase transparency along the supply
chain.
9. 5. FOOD WASTE
• The food waste issue has gained more attention as it
offers consumers a way to tackle sustainability in
their own homes, and businesses like Too Good To
Go have offered innovative ways to repurpose food
and drink that would typically go to waste.
With consumers well aware of the impacts of food
waste today, OLIO, an app that redistributes food
between consumers, says joining the food waste fight is
a good way to boost your business’s eco credentials. “It
doesn’t matter how big or small the amount of food is,
people hate, hate, hate food waste,” said Tessa Clarke,
co-founder of OLIO. “So for any business that wants to
protect – and build – its reputation, it’s critical to
achieve zero food waste locations, especially when so
many in local communities are struggling to get by
10. 6 . SUPPLY CHAIN ISSUES
A typical food supply chain is made up of six stages :
Sourcing of ingredients and raw materials
Production
Processing and packaging
Storage
Wholesale distribution
Retail redistribution to consumers
If any one of these stages is compromised, a variety of issues will arise and the whole
supply chain will be in jeopardy.
12. What is Aquaponics ?
Aquaponics is the farming of fish and plants in a
single recirculating system. The waste from the fish
becomes the nutrients for the plants, and the plants
in turn remove these nutrients from the water,
purifying it for the fish. In this way, the fish waste is
used to grow a plant crop that becomes a second
income stream for little extra cost. In fact, it works
so well that the plants become the primary crop by
volume and value.
14. TYPE OF AQUAPONICS
There are three main type of aquaponics :
1. GRAVEL BED CULTURE (GBC)
2. DEEP WATER CULTURE (DWC)
3. NUTRIENT FILM TECHNIQUE (NFT)
15. Gravel bed culture (GBC)
In this the plants are rooted in coarse gravel or aggregate media.
Bacteria grow on the media and convert the ammonia excreted by the fish to
nitrate.
Plants within the grow beds remove the nitrate from the water, which then
returns to the fish in a clean and healthy form.
No mechanical or biological filtration is required as the gravel beds suit both
purposes.
This method is most variable in terms of the range of crops that can be grown
and there is no waste water discharge.
17. DEEP WATER CULTURE (DWC)
The water from the fish is filtered mechanically and biologically to remove
the solids from suspension and convert the toxic ammonia to benign
nitrate.
This clean water then travels down the length of a tank of water in which
polystyrene rafts are floated.
Plants are rooted through the holes in the polystyrene sheets and into the
water below, where the roots take up nutrients from the water.
DWC is most suited to leafy crops and there is some discharge of water
during the filtration process.
19. NUTRIENT FILM TECHNIQUE (NFT)
As with DWC the water is filtered prior to going to the plants, but in this
case the plants are rooted through holes in pipes.
The tip of the root touches the bottom surface of the pipe and absorbs
nutrients from a thin film of water trickling down the length of the pipe.
NFT is very susceptible to heat uptake or loss as the air temperature
changes, and the plants can be lost quickly through drying out during a
power failure.
This method also results in the loss of water and nutrients during filter
cleaning, and is also best suited to leafy crops.
21. WHY AQUAPONICS ?
Aquaponics is not only a most
enjoyable way of producing high
quality, wholesome crops as a
business or for own use, but it also
has several distinct advantages over
both aquaculture and hydroponics.
22. Advantages of aquaponics food
production
Fish waste is utilised as plant feed rather than being wasted
Excellent crop quality - both in terms of taste and appearance
provides a truly organic form of nutrients for the plants
produces an organic product (no fertilizer or herbicides used)
no soil-borne disease as there is no soil
no water is wasted or consumed by weeds
Systems do not require mechanical or biological filters - the processes all
occur naturally, saving money and resulting in a natural, stable
environment
23. .
Low labour requirement
relatively small spaces required as plant spacing can beintensive
plants grow and develop relatively quickly
Crop harvesting is quick and easy, regardless of the weather outside
Crops can be grown all year-round. In most climates a greenhouse is required
Higher yields than conventional farming
Faster growth to market size due to optimal conditions beingmaintained
Root temperature very stable resulting in fewer disease issues than hydroponics
24. Cultivable plants in Aquaponics
Bendi – Okra
Cherry - Tomato
Daun Pandan - Pandanus Amaryllifolius
Kangkong - Water Spinach
Keladi - I Yam not Taro
Kesum - Knotweed Leaf
Kunyit – Turmeric
Mengkudu Hutan - morinda elliptica
